Meanwell LDD driver: for those who want to dim to 0 using Arduino
- Thread starter pwreef
- Start date
Idefixes
New member
Hi all, Here is, based on my need, two LDD board. I need 2 of each (26 drivers at all). In the six model i inclued a voltage regulator with a display so i ba able to tweak fan speed. In my arduino soft fan are just turn on and off. Board are bigger as O2 can do but i need to srew them on two U aluminium length that are 150mm wide each other. Board wil be located between fans and have faston spad to run current from one board to the other. For supplying i have from a friend à industrial SMPS : 2x 24V that are bound in serie so 24V/46A.My friend ajust them to 43V.
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No,... not for my multichips,...power goes right to my driver boards mounted on the side of the pvc/cannon. I'll have a separate PS for my arduino, pumps and feeders all run through cat5 patch cables,...all very low power draws, not sure if I'll put it in the enclosure, Probably not,...will just run the low voltage side to the enclosure, I don't want 110v cords hanging from it.---Rick
Nice Boards Marc! I love that power supply...... :lolspin:24V/46 AMPS! You could ARC WELD with that!
_shorty_
New member
Idefixes
New member
For sure. This unit wil be located in basement with sump. I will put dedicated 43V electrical wire to Display tank in living room
Marc
The hardware cost totaled $275.55. Mounting, that will depend on how much you have to do and if Steve's wants to deal with them again LOL, apparently they were 'definitely challenging to work with', aka a real *****
Here is a live document of the total cost so far of my array: https://docs.google.com/spreadsheet/pub?key=0ApFtf5lEQFtOdGZMNjRyancxSWRpa0pWQ1MzN3ItRVE&output=html
I think I only have some Luxeon M to get (waiting for a different bin) and just need the Nanobox enclosure and wire sleeve to arrive, then I've got a buttload of soldering and wiring and sleeving and just plain WORK to do
Dang, too rich for my blood. :lolspin: I'll stick with massive arrays of star chips and diffuser for now......
me too. ever plug a 12 volt fan into a 24 volt supply by accident....WHIRRRRRRRRR....POOOF!
Fantastic! I just finished re-re-re-watching the original series and all the movies last weekend.....
nightOwl
Premium Member
Wow I have just finished reading this thread over the past few days. My hat goes off to all of those who have provided valuable information freely to anyone willing to read. This has got to be one of my favorite threads ever. O2Surplus all I can say is you are a designing demon! I am not even a LED guy but think I may tinker with it after reading this thread.
Lol- Thanks for the compliments. Four years ago I wasn't an Led guy either! It was this Forum that got me started. I found a wealth of information here and plenty of people much smarter than me who'd take the time to answer my questions. I'm just paying it forward.
Check FleaBay for listings out of Taiwan. Jameco and other sites have them listed, but with a 50 day lead time.:eek2:
jener8tionx
New member
Does anyone know of a board that will take 48v DC input and control a 12v DC fan using PWM? I want to control my 12v fans using my arduino and it would be nice if I could use the 48v power.
Alternately, a 12v to 0-12v board would work.
Thank you!
Alternately, a 12v to 0-12v board would work.
Thank you!
jedimasterben
LED world domination!
Yes, the SCW05C-12 that we're talking about on this page and the past few
nemosworld
Active member
You are correct, but even if someone did not want to buy another board, and simply wanted to step down to 12v, they are step down converters on ebay.
they work great, some are adjustable.
just google 12v dc/dc step down.
you can go from 48v to 12v etc
Your right Felix,...I have a bag full of these guys http://www.ebay.com/itm/310670105406?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648 and I controll them with these http://www.ebay.com/itm/400395655873?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648
I'm kind of a flashing lights, bells and whistles guy,...I like them because you can adjust them to the voltage you want. :thumbsup:
I'm kind of a flashing lights, bells and whistles guy,...I like them because you can adjust them to the voltage you want. :thumbsup:
jener8tionx
New member
Thank you for the replies.
Is there a way to digitally control the output voltage of the LM2596? What i really want is a way to vary the fan's speed based on led intensity.
Is there a way to digitally control the output voltage of the LM2596? What i really want is a way to vary the fan's speed based on led intensity.
